ABSTRACT
Objective:To investigate the imaging features of gastrointestinal stromal tumors(GIST)and their diagnostic value,so as to improve the diagnosis of GIST.Methods:The clinical and imaging data of 19 cases with GIST proved by operation and pathology were analyzed retrospectively.Of the 19 cases,19 cases were diagnosed by imaging examination,18 cases by gastrointestinal barium,14 cases by CT,3 cases by MRI,and 8 cases by DSA.Results:Of the 19 cases with GIST,8 were located in stomach,2 in duodenum,3 in jejunum,2 in ileum,2 in colon,2 in mesentery;5 were benign and 14 malignant;3 cases was with hepatic metastasis and 2 with peritoneal lymphoid node metastasis.Conclusion:Imaging examinations have respectively features and advantages,which are helpful to the correct diagnosis of the disease;Gastrointestinal radiograph,CT,MRI and DSA play important roles in precise location,judging benign and malignant and differential diagnosis;The final diagnosis of GIST depends on immunohistochemical and electromicroscopic examination.